Stormwater and drainage

Christchurch's waterways have drainage, ecological, recreational, cultural, heritage and amenity values.

Wet weather and flooding

When to get in touch with us, how we respond and what you can do.

Flooding and floor levels

Flood modelling information, along with minimum floor levels for buildings.

Stormwater policies and strategies

Policies and strategies relating to stormwater and drainage.

Stormwater and your property

Drainage plans, guidance and information about stormwater on private property.

Drainage plans for your property

Use our interactive map to see public utility pipelines and waterways.

Industrial stormwater

Apply for an industrial stormwater discharge licence.

Surface flooding reduction

Resolving surface flooding at sites that experience regular issues.


Related news

Boil water notice lifted

The boil water notice affecting Christchurch’s Rawhiti water supply zone has been lifted.

16 Feb 2026

Prepare for heavy rain overnight Monday

Residents are encouraged to prepare for rain predicted to impact Christchurch and Banks Peninsula from later today, with the heaviest period expected overnight from Monday to Tuesday.

16 Feb 2026

Council issues boil water notice for Rawhiti water supply zone

Residents and visitors to areas of New Brighton, Burwood, Wainoni, Aranui and Southshore are being advised to boil their water until further notice after a sample within the zone was found to be contaminated.

15 Feb 2026

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